Odoo11: Python 3 expects string, not bytes, when writing to file-like objects

Question

Odoo 11, uses Python3, which is good, but I wonder what is the best way to read/write to file-like objects.
Code which seemed to work like a charm in Py2.7, failed to execute in Py3, thus I wonder what could I be doing wrong...
I did changed import StringIO from io, but no luck. Anybody faced issues like this, any suggestions would be appreciated.
from io import StringIO
wb = xlwt.Workbook( encoding = "UTF-8" )
ws = wb.add_sheet( 'Sheet1' )
....
fp = StringIO()
wb.save(fp)
fp.seek( 0 )
data = fp

Niyas Raphy (Walnut Software Solutions) · Accepted Answer

Hi,
Instead of StringIO try with * BytesIO *
check this for more info : Error. string argument expected, got 'bytes' [1]
Thanks

[1] https://stackoverflow.com/questions/32075135/python-3-in-memory-zipfile-error-string-argument-expected-got-bytes

Hilar Andikkadavath · Answer

In python3 The *StringIO* and *cStringIO* modules are gone. You can import io and use io.StringIO or io.BytesIO
eg:
import io
f = io.BytesIO(b"some initial binary data: \x00\x01")
f = io.StringIO("some initial text data")

Dipak Shah · Answer

Hey Deep,
Please Try with ,
from io import BytesIO
fp = BytesIO()
For more ref :
> \https://stackoverflow.com/questions/37462075/confusing-about-stringio-cstringio-and-byteio
Thanks.

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